Multi-site isomerization of synergistically regulated stimuli-responsive AIE materials toward multi-level decryption.

ABSTRACT: Stimuli-responsive aggregation-induced emission (AIE) materials are highly sensitive and rapidly responsive to external signals, making them ideal solid materials for anti-counterfeiting encryption. However, the limited conformational and packing variations resulting from regio-isomerization with a single substituent restricts the stimuli-responsive behavior of these materials. In this work, several AIE-active regio-structural isomers based on the salicylaldehyde Schiff base scaffold have been straightforwardly obtained through multiple substitutions with bromide and triphenylamine moieties. Solvent-effect experiments demonstrate their different orders of charge-transfer and excited-state intramolecular proton transfer upon photoexcitation, indicating the regulation of excited-state proces

SUBMITTER: Zhong W 

PROVIDER: S-EPMC10935665 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature